CN214897710U - Novel underground cable - Google Patents

Abstract

The utility model discloses a novel bury cable, which comprises an outer shell, the fixed flame retardant coating that is provided with of inner wall of shell, this flame retardant coating can effectually prevent the burning of cable, and it is regional to restrain the burning, prevents that the intensity of a fire from expanding, the fixed steel ring that sets up of one section distance of every between shell and the flame retardant coating, the fixed multiunit shell fragment that is provided with on the outer wall of steel ring, the shell fragment can promote some cable's compressive capacity to coming from the pressure of soil layer all directions, and the fixed layer of armoring that sets up of inner wall of flame retardant coating, the layer reinforced cable's that armoring of steel bulk strength, the fixed insulating layer that sets up of inner wall on the layer of armoring of steel, the fixed shielding layer that sets up of inner wall of insulating layer, the fixed wire that sets up of inner wall of shielding layer, space between the wire is provided with the filler. The utility model discloses a novel bury cable, the device simple structure can effectual promotion increase life to the compressive capacity of soil layer.

Description

Novel underground cable

Technical Field

The utility model relates to a special type wire and cable field especially relates to a novel bury cable.

Background

Underground cable is compared with common overhead line, often buried in the underground cable, so also called underground cable, the cable is made by insulating layer and protective layer outside the conductor of one or more mutual insulation, is used for transmitting electric power or information to the wire of another place, after entering modern society, because urban land is nervous, traffic pressure is big, reason such as city construction, etc., the underground cable transmission mode of general adoption in big city, relative to overhead line, the cable has advantages such as the occupation of land is little, transmission of electricity is reliable, interference killing feature is strong.

However, the cable is often buried in a shallow layer, so that the time is long, the cable buried in the shallow layer is easy to deform or break, the service life is greatly shortened, and in addition, the cable buried in the shallow layer is easy to displace due to frequent extra pressure, so that the difficulty is caused for subsequent maintenance.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the defects existing in the prior art and providing a novel buried cable.

In order to achieve the above purpose, the utility model adopts the following technical scheme: the utility model provides a novel bury cable, includes the shell, the fixed flame retardant coating that is provided with of inner wall of shell, the fixed steel ring that sets up of one section distance of every between shell and the flame retardant coating, the fixed multiunit shell fragment that is provided with on the outer wall of steel ring, the fixed layer of armoring that sets up of inner wall of flame retardant coating, the fixed insulating layer that sets up of inner wall on the layer is armoring to the steel, the fixed shielding layer that sets up of inner wall of insulating layer, the fixed wire that sets up of inner wall on shielding layer, space between the wire is provided with the filler.

As a further description of the above technical solution:

the steel armour layer is formed by weaving a plurality of steel wires.

As a further description of the above technical solution:

the insulating layer is made of rubber materials.

As a further description of the above technical solution:

the elastic sheets are arranged on the steel ring in three groups in an annular array.

As a further description of the above technical solution:

the material of the filling layer is glass fiber line.

As a further description of the above technical solution:

the shielding layer is made of aluminum alloy wires.

As a further description of the above technical solution:

the elastic sheet is made of an elastic steel sheet.

The utility model discloses following beneficial effect has:

the utility model discloses the holistic intensity of cable can be consolidated effectively to the steel ring that in set up, sets up the multiunit shell fragment on the steel ring, can effectively reduce the pressure that comes from each direction of soil layer, effectively promotes the holistic compressive capacity of cable.

The utility model provides a flame retardant coating can prevent effectively that the cable from being on fire, and fire-retardant material wherein can play fire-retardant effect when the cable burning, reduces the loss.

Drawings

Fig. 1 is a front sectional view of a novel buried cable provided by the present invention;

fig. 2 is a front view of a novel buried cable provided by the present invention;

fig. 3 is a section view of the novel buried cable provided by the utility model.

Illustration of the drawings:

1. a housing; 2. a fire barrier layer; 3. a steel layer; 4. an insulating layer; 5. a filler; 6. a wire; 7. steel rings; 8. a spring plate; 9. and a shielding layer.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention; the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance, and furthermore, unless otherwise explicitly stated or limited, the terms "mounted," "connected," and "connected" are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Referring to fig. 1-3, the present invention provides an embodiment: the utility model provides a novel bury cable, which comprises an outer shell 1, the fixed flame retardant coating 2 that is provided with of inner wall of shell 1, can prevent that the intensity of a fire after the cable is fired on fire from stretching speed too fast, the fire resistance ability of effectual promotion cable, one section distance of every is fixed between shell 1 and the flame retardant coating 2 and sets up steel ring 7, the fixed multiunit shell fragment 8 that is provided with on the outer wall of steel ring 7, steel ring 7 can play a reinforced (rfd) effect to the cable, shell fragment 8 promotes the compressive capacity of cable, the fixed layer 3 of steel army that sets up of inner wall of flame retardant coating 2, the layer 3 of steel army is the back coat, promote the bulk strength of cable, the fixed insulating layer 4 that sets up of inner wall on layer 3 of steel army, the fixed shielding layer 9 that sets up of inner wall of insulating layer 9, the fixed wire 6 that sets up of inner wall, space between the wire 6 is provided with filler 5.

The material of flame retardant coating 2 is tertiary third of ten heavenly stems emulsion waterborne combined material, and steel is triumph layer 3 and is woven for many steel wires and form, and the material of insulating layer 4 is rubber materials, and shell fragment 8 is three group's annular arrays setting on steel ring 7 altogether, and filler 5's material glass fiber line, glass fiber are outstanding fire prevention material, and the material of shielding layer 9 is aluminium alloy wire, and the material of shell fragment 8 is elastic steel sheet, and the material of this cable all is common on the market, and is fit for the material of a large amount of purchases.

The working principle is as follows: this bury ground cable when being buried underground, when the top on soil layer gave pressure, the shell fragment 8 that sets up on 7 outer walls of steel ring can alleviate the oppression of pressure to the cable through the elasticity of self, promotes the compressive capacity of cable, and flame retardant coating 2 can effectually prevent the fire of cable and stretch, improves the security of cable, practices thrift the cost.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications and variations can be made in the embodiments or in part of the technical features of the embodiments without departing from the spirit and the scope of the invention.

Claims (7)

1. A novel buried cable comprises a shell (1), and is characterized in that: the inner wall of shell (1) is fixed and is provided with flame retardant coating (2), one section distance of every between shell (1) and flame retardant coating (2) is fixed and is set up steel ring (7), the fixed multiunit shell fragment (8) that is provided with on the outer wall of steel ring (7), the inner wall of flame retardant coating (2) is fixed and is set up steel layer (3), the inner wall of steel layer (3) is fixed and is set up insulating layer (4), the inner wall of insulating layer (4) is fixed and is set up shielding layer (9), the inner wall of shielding layer (9) is fixed and is set up wire (6), space between wire (6) is provided with filler (5).

2. A novel buried cable according to claim 1, wherein: the steel armour layer (3) is formed by weaving a plurality of steel wires.

3. A novel buried cable according to claim 1, wherein: the insulating layer (4) is made of rubber materials.

4. A novel buried cable according to claim 1, wherein: the elastic sheets (8) are arranged on the steel ring (7) in three groups in an annular array.

5. A novel buried cable according to claim 1, wherein: the filler (5) is made of glass fiber wires.

6. A novel buried cable according to claim 1, wherein: the shielding layer (9) is made of aluminum alloy wires.

7. A novel buried cable according to claim 1, wherein: the elastic sheet (8) is made of an elastic steel sheet.

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